MCP Grafana

mcp-grafana

A safe-by-default Model Context Protocol server for Grafana. It lets an agent explore and operate Grafana — search dashboards, read the dashboard JSON model, list and query datasources (Prometheus / Loki / SQL), inspect alert rules and annotations, and (in higher modes) create/update dashboards and folders, write annotations, and delete.

Part of the dockndevai MCP server suite — one governance model across all of them.

What it gives an agent

The server starts read-only (see Safe by default); higher-capability tools are only registered when you raise the mode.

Install

npx -y @dockndevai/mcp-grafana

You need a Grafana service account token (Administration → Service accounts → Add service account → Add token). Give it the least role that works — Viewer for read-only use, Editor to create/update, Admin only if you must delete.

Configure

{
  "mcpServers": {
    "grafana": {
      "command": "npx",
      "args": ["-y", "@dockndevai/mcp-grafana"],
      "env": {
        "GRAFANA_URL": "http://localhost:3000",
        "GRAFANA_TOKEN": "glsa_...",
        "GRAFANA_MODE": "read-only"
      }
    }
  }
}

See docs/CLIENTS.md for Claude Code / Cursor / Codex / VS Code / Windsurf snippets, and .env.example for every supported variable.

Safe by default

The access model is enforced by src/security.ts — defence in depth on top of the service-account token's own role:

• GRAFANA_MODE — read-only (default) → read-write → admin. A tool is registered only if the mode allows its capability. Read-only exposes the 11 read tools; edits need read-write; deletes need admin.
• GRAFANA_ALLOW_DELETE — deletes are irreversible, so on top of admin mode they also require this flag.
• GRAFANA_FOLDER_ALLOWLIST / GRAFANA_PROTECTED_FOLDERS — confine which folders can be written to; mark folders (e.g. production) that may be read but never modified or deleted.
• GRAFANA_DATASOURCE_ALLOWLIST — restrict which datasources query_datasource may hit.
• GRAFANA_DRY_RUN — validate and log writes without executing them.
• GRAFANA_AUDIT_LOG — a JSON audit line per guarded operation, on stderr (default on).
• Interactive confirmation — when the client supports MCP elicitation, deleting a dashboard/folder/annotation prompts the human to approve before it runs; clients that can't elicit fall back to the GRAFANA_ALLOW_DELETE gate.
• Secrets are never returned — datasource secureJsonData, passwords and tokens are stripped from every response.

See SECURITY.md.

Working with dashboards & queries

Conventions for the dashboard JSON model, panel/target shapes, PromQL/LogQL/SQL query patterns, folder organisation and safe editing live in the bundled skill: .claude/skills/grafana-dashboards-and-queries/SKILL.md. Agents that load it can build and edit dashboards to a consistent standard without being re-taught each time.

Developing

npm install
npm run build
GRAFANA_URL=http://localhost:3000 GRAFANA_TOKEN=glsa_… node dist/index.js
# introspect without a live Grafana:
echo '{"jsonrpc":"2.0","id":1,"method":"tools/list","params":{}}' | GRAFANA_TOKEN=x node dist/index.js

Licence

MIT